This is a reasonably priced and well-regarded DC-18V/center-negative power adapter. I bought it new for my MXR flanger, but I quickly integrated it into my pedalboard, so I haven't used it much. Comes with the original box. DC18V Center Negative 400mA Plug inner diameter: 2.1mm Shipping is planned via Yu-Packet Post. *This item may also be listed on other flea market and auction sites. I will try to remove the listing as soon as possible if a bid is placed there, but there is a chance that transactions may overlap and have to be canceled. Please contact me before purchasing to avoid this.